David Tennant's time in the TARDIS.

The Doctor encounters the first human colony on Mars, Bowie Base One.

Lady Christina de Souza joins the Doctor on a dangerous bus trip.

The doctor meets a strange man in Victorian England, called The Doctor.

The Doctor's secret army of companions join forces to battle Davros.

Earth's greatest heroes assemble to fight the New Dalek Empire, but a fearsome old enemy waits in the shadows; the Doctor's secret army of companions join forces to battle Davros.

Earth's greatest heroes assemble to fight the New Dalek Empire, but a fearsome old enemy waits in the shadows.

Donna gets help from a mysterious blond woman.